Skip to main content
Weiter zur Homepage der Europäischen Kommission (öffnet in neuem Fenster)
Deutsch de
CORDIS - Forschungsergebnisse der EU
CORDIS
Inhalt archiviert am 2024-04-30

Studies on mosquito vectors in west africa, aimed at malaria epidem iology and control

Ziel

* To determine the distribution, bionomics, population structure and vectorial capacity of malaria vectores in S.Tomé and Equatorial Guinea.
* To implement the large scale use of molecular probes for the identification of anopheline sibling species.
* To identify human parasite species in mosquitoes by PCR using different methods of DNA extraction.
* To perform longitudinal studies on the population dynamics of mosquito vectors in association to interventions.
Expected Outcome

* Training of personnel from SaoTomé e Principe and Equatorial Guinea, in Lisbon (PCR) and Rome (Cytogenetics).
* Workshop in Equatorial Guinea, on the project aims and methodologies will take place in March/April 1997.
* Local laboratories, fully equiped, able to carry out studies on vector identification by cytogenetics and DNA extractions.
* Determination of the best mosquito collection methods to apply in the field will be determined and applied within a standardized work programme. Longitudinal time series analysis of (daily) collections from individual houses will be completed after 2-3 years.
* Identification of malaria vectors and parasites by PCR and cytogenetics, on both islands, after 18 months.
* Mapping of collection sites and vector distribution by GPS (Global Positioning System) established within the first year.
* Integration of epidemiological morbidity data with entomological information by the second year.
* Integration with parallel studies on drug resistance in Sao Tomé and Equatorial Guinea.
* The relative risk of malaria transmission, by time of night, area, season and vector species will be determined.
* Appropriate vector control strategies, based on the assessment of these risks, will be defined and implemented in defined sites.
* Collections will be carried out by teams already trained, in both islands, and under supervised visits. These will take place, twice a year for the initial collection of data, followed by regular samplings throughout the year, aimed at studies of distribution and bionomics.
Locations of collections will be made preferably, in relation to a) intervention sites e.g. drainage and local use of mosquito bed nets vs controls; b) randomly determined locations. These are being discussed at this stage.
Population structure will be assessed by specific inversion kayotype studies as well as PCR classification.
During the first year, training on these and other required techniques will take place at Lisbon and Rome. Implementation in the field of these techniques and establishment of functional laboratories in the field will take place in the first year.

* Validation of field sampling methods, including CDC miniature light traps, indoor resting collections, exit window traps and human landing collections, for estimating entomological inoculation rates (EIR), for the different vector species, will be undertaken and the most reliable and cost effective method will be adopted for long term studies.
Vectorial capacity will be further evaluated by standardized ELISA assays for NANP Ag.
Whenever required, age grading studies will take place, after analysis of the first years results.

* PCR methodology will be applied mainly for comparative studies from regions within each island and these will aim specifically to the Anopheles gambiae complex of vectors.
PCR studies aimed at identifying human malaria parasites will take place in order to evaluate transmission of the 4 existing malaria parasites in both islands. These are carried out from both oocysts and salivary glands, from naturally fed mosquitoes, collected from a) patients with identified gametocytes by optical microscopy, b) from a random sample of the population.
PCR studies for the identification of human malaria parasites require preliminary laboratory assays in order to improve DNA extraction from parasites and thereby reduce technical difficulties due to excessive mosquito material. These studies will be initiated in the laboratory in Lisbon.
*
Interventions are planned, locally, aimed at malaria control. These include the utilization of impregnated bed nets (Sao Tomé and Equatorial Guinea), and drainage of some areas in Sao Tomé where malaria is highly prevalent. Both are being implemented now and studies on the dynamics of vector populations will be carried out according to methodologies described above.

Wissenschaftliches Gebiet (EuroSciVoc)

CORDIS klassifiziert Projekte mit EuroSciVoc, einer mehrsprachigen Taxonomie der Wissenschaftsbereiche, durch einen halbautomatischen Prozess, der auf Verfahren der Verarbeitung natürlicher Sprache beruht. Siehe: Das European Science Vocabulary.

Sie müssen sich anmelden oder registrieren, um diese Funktion zu nutzen

Programm/Programme

Mehrjährige Finanzierungsprogramme, in denen die Prioritäten der EU für Forschung und Innovation festgelegt sind.

Thema/Themen

Aufforderungen zur Einreichung von Vorschlägen sind nach Themen gegliedert. Ein Thema definiert einen bestimmten Bereich oder ein Gebiet, zu dem Vorschläge eingereicht werden können. Die Beschreibung eines Themas umfasst seinen spezifischen Umfang und die erwarteten Auswirkungen des finanzierten Projekts.

Aufforderung zur Vorschlagseinreichung

Verfahren zur Aufforderung zur Einreichung von Projektvorschlägen mit dem Ziel, eine EU-Finanzierung zu erhalten.

Daten nicht verfügbar

Finanzierungsplan

Finanzierungsregelung (oder „Art der Maßnahme“) innerhalb eines Programms mit gemeinsamen Merkmalen. Sieht folgendes vor: den Umfang der finanzierten Maßnahmen, den Erstattungssatz, spezifische Bewertungskriterien für die Finanzierung und die Verwendung vereinfachter Kostenformen wie Pauschalbeträge.

CSC - Cost-sharing contracts

Koordinator

UNIVERSIDADE NOVA DE LISBOA
EU-Beitrag
Keine Daten
Adresse
Rua de Junqueira 96
1349 LISBOA
Portugal

Auf der Karte ansehen

Gesamtkosten

Die Gesamtkosten, die dieser Organisation durch die Beteiligung am Projekt entstanden sind, einschließlich der direkten und indirekten Kosten. Dieser Betrag ist Teil des Gesamtbudgets des Projekts.

Keine Daten

Beteiligte (5)

Mein Booklet 0 0